The Evaluation of Various Restoration Techniques on Internal Adaptation of Composites in Class V Cavities

Table 3

Mean and standard deviation of internal gap (μm) of the experimental groups.

Group	Mean width; of internal gap (μm)	Percentage of specimens with gap free interfaces
1	10.3 ± 2.2^A	40%
2	22.5 ± 5.1^B	10%
3	12.4 ± 2.4^A	30%
4	18.2 ± 4.5^B	10%
5	20.4 ± 4.3^B	20%

Same letter indicates no statistically significant difference ().